Returning from the previous version of Super Smash Bros, Green Hill Zone is a rolling stage made up of two small hills, with a small valley seperating the two. If fighter have damaged the ground in the middle of the stage too much, the ground will collapse to create a large gap that characters can be KO'd in.

Additionally, checkpoints from the Sonic the Hedgehog game will often appear on the stage, and can be hit once to cause them to spin, damaging rivals who come to close.

Certain other Sonic characters can also be found running along the terrain in the background, but cannot be reached.